MATV (Master Antenna Television) Explained

MATV (Master Antenna Television) Explained

MATV systems (Master Antenna Television) distribute signals from a single aerial system to a number of receivers.MATV systems differ from IRS (Integrated Reception Systems) by only offering Freeview and DAB radio. For those projects where giving residents the optimum choice of satellite TV is not a prime objective such as affordable housing, prisons or hospitals, this can result in a cost saving for the developer. These modern 'Multi point' distribution systems normally incorporate a form of MATV design which is tailored to the client's specific needs.

In a typical modern MATV installation the aerial is a conventional UHF TV aerial, receiving both analogue and digital TV signals. These signals are then processed and a distribution network delivers all television signals to a socket in each destination. There can be more than one outlet per destination, but only one TV set can be connected.

A multitude of commercial premises including hotels, offices, housing developments and holiday parks, now utilise some form of MATV system to supply an array of different programmes and information services to their end-user customers.

While MATV systems may vary in size and complexity, the basic structure of the system includes two clear areas of interest, namely the Head End System and the Distribution System.

The MATV Head End is primarily tailored to provide the end-user with 'Off-Air' terrestrial services like BBC1, BBC2, ITV, C4 and C5. The 'Off-Air' services are initially received by a robust high gain aerial installation, which is mounted at a convenient position on the premises. A high quality antenna and Mast Head Amplification ensure that signal quality is optimised at the front end of the Head-End system therefore minimising any form of inherent noise, prior to the main amplification stages. This signal feed is then passed through channel equalisation stages to balance all incoming channels before additional filtering stages are used to minimise or reject unwanted interference sources. Clients now have the option of inserting additional UHF/ VHF channels for special features like Guest Information Services, Video programmes (PPV) or 'Off Air' radio services (BBC Radio etc), before the signal is then fed to the main launch amplification for onward distribution.

The Distribution System involves inserting the output signal from the launch amplifier into a structured cabling system constructed of high grade cable and screened outlet plates, which are installed within the premises to provide the end user with the required service package. Structured cabling systems can vary greatly in size, dependent upon the physical layout of the premises they are being installed into and the number of outlet points required to support the end-users customer requirements.

DAS have many years of practical experience of installing MATV systems by completing major projects for commercial clients across the country.

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